GenAI Full-Stack Engineer: Build Intelligent Workflows

FPT Asia Pacific Pte Ltd; Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

FPT Asia Pacific Pte Ltd is seeking a Software Developer with strong full-stack capabilities to design, build, and deploy GenAI applications and agentic workflows that automate complex business processes and power intelligent user experiences.

You will design end-to-end GenAI apps, orchestrate multi-step tasks with LLMs and tools, and integrate vector stores and enterprise data sources. Collaboration with product managers and ML engineers will be essential to deliver secure, scalable AI features.

Qualifications

• 3-5 years of professional software development experience with a strong full stack background.
• Proficiency in at least one modern backend stack (Node.js/TypeScript, Python, Java, or Go) and REST/gRPC API design.
• Experience with modern front-end frameworks (React, Vue, or Angular) and building production-grade UIs.
• Hands-on experience integrating LLMs/GenAI APIs from providers like OpenAI, Azure, or AWS.
• Familiarity with agent frameworks and orchestration libraries (LangChain, LlamaIndex, AutoGen).
• Experience with SQL/NoSQL databases and vector stores or embedding-based search.
• Solid understanding of software engineering best practices: testing, CI/CD, code reviews, and secure coding.

Responsibilities

• Design and implement end-to-end GenAI applications (chatbots, copilots, workflow assistants) across web and backend services.
• Build agentic workflows that orchestrate multi-step tasks using LLMs, tools, APIs, and event-driven triggers.
• Develop and maintain backend services and APIs that integrate GenAI models, vector stores, and enterprise data sources.
• Implement retrieval-augmented generation (RAG) pipelines and tool-calling agents for knowledge and process automation.
• Build responsive front-end interfaces for interacting with agents and monitoring workflows.
• Deploy, monitor, and optimize GenAI and agentic services in production (performance, reliability, cost, safety).
• Implement observability, logging, and evaluation frameworks for agent behavior, prompts, workflows, and user journeys.
• Collaborate with product managers, data/ML engineers, and domain experts to translate business requirements into GenAI-powered solutions.
• Ensure security, guardrails, and governance for AI features, including access control, PII handling, and safe outputs.
• Contribute to internal SDKs, templates, and reusable components to accelerate GenAI development.

Skills

Full stack development

REST API design

Front-end frameworks

GenAI / LLM integration

DevOps / CI-CD

Security & governance

SQL/NoSQL databases

Tools

Docker

Kubernetes

LangChain

LLM providers (OpenAI/Azure/GCP)

Job description

FPT Asia Pacific Pte Ltd is seeking a Software Developer with strong full-stack capabilities to design, build, and deploy GenAI applications and agentic workflows that automate complex business processes and power intelligent user experiences.

You will design end-to-end GenAI apps, orchestrate multi-step tasks with LLMs and tools, and integrate vector stores and enterprise data sources. Collaboration with product managers and ML engineers will be essential to deliver secure, scalable AI features.